Home / 2,880.03-4,320.45-1,124.73

Finding the Fourth Proportional to 2,880.03, 4,320.45 and 1,124.73

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Solution

The fourth proportional to 2,880.03, 4,320.45 and 1,124.73 is: 1,687.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,880.03 : 4,320.45 = 1,124.73 : x
  2. Step 2: Convert to fraction form
    2,880.03/4,320.45 = 1,124.73/x
  3. Step 3: Cross multiply
    2,880.03x = 4,320.45 × 1,124.73
  4. Step 4: Simplify right side
    2,880.03x = 4,859,339.73
  5. Step 5: Solve for x
    x = 4,859,339.73/2,880.03
  6. Step 6: Final answer
    x = 1,687.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.